This may help you:
http://msmvps.com/blogs/egoldin/archive/2008/03/16/customizing-web-config-for-di
fferent-environments.aspx

Signature
Eliyahu Goldin,
Software Developer
Microsoft MVP [ASP.NET]
http://msmvps.com/blogs/egoldin
http://usableasp.net
> Hello dear ng,
>
[quoted text clipped - 15 lines]
>
> Holger
Holger Kreissl - 15 Apr 2008 09:32 GMT
> This may help you:
> http://msmvps.com/blogs/egoldin/archive/2008/03/16/customizing-web-config-for-di
fferent-environments.aspx
Not really. I already use a custom install project where I can enter all
needed strings. It updates the web.config automatically.
My problem is, that you cannot use the same MSI file for more than one
installation... If you install to Project1 you are not able to install a
Project 2 without get asked for deinstalling Project1...
I hope i could make my point clear.. Sorry for my english :)
Holger

Signature
Holger Kreissl
.NET Software Developer
http://kreissl.blogspot.com/
>> i am using a web setup project to install an asp.net project on a
>> target machine. No I want to install also a test verstion in another
[quoted text clipped - 13 lines]
>>
>> Holger